例句與造句

1. The left hand side is the maximum frictional force, which equals the coefficient of friction " ? " multiplied by the normal force.
2. If too much torque is applied to the wheels, the force between the wheels and the ground will exceed the maximum frictional force due to the coefficient of friction between the wheel and ground surfaces.
3. It's difficult to find maximum frictional force in a sentence. 用maximum frictional force造句挺難的